Plane file shoe attachment



. 22, 1953 J. G. BENNETT 266307o PLANE FILE SHOE ATTACHMENT Filed May 6, 1950 INVENTOR James B EETmEtt,

ATTORNEY Patented Dec. 22, 1953 UNITED STATES PATENT OFFICE James G. Bennett, North Bend, Wash. Application May 6, 1950, Serial No. 160,521

2 Claims.

file attachment and has for an object to provide an improved attachment for a hand or power plane which acts as a shoe or guard for protecting the surface of the plane and the blade when it is stored away and also to provide a file means for smoothing off a surface that has been planned and is particularly useful in smoothing or rounding ofi edges of the same material that has been planed.

A further object of this invention is to provide a file and guard attachment for a power or hand plane which may be snapped on to the plane and when so snapped on, the plane acts as a handle for manipulating the file attachment in a sanding or filing action providing the necessary body or weight thereto and where in the upturned sides of the attachment provide a finger cooperating serrated gripping surface whenthe bottom surface is used for filing and wherein either side surface may individually be used for filing at the same time with or independently of the filing action of the bottom surface.

A further object of this invention is to provide a file attachment for a plane wherein when so attached, the plane acts as a handle and the file attachment provides bottom and side filing surfaces which may be particularly useful in filing or smoothing two inside right angular surfaces as the inside of a drawer.

A further object of this invention is to provide a snap-on sander and file shoe for a hand or power plane.

A further object of this invention is to provide a snap-on shoe for a plane, which shoe is provided with a filing surface both on the bottom and side edges thereof.

A further object of this invention is to provide a file or guard shoe for a plane which in its most convenient form may be made to snap on but obviously may be attached by any other conventional means, such as bolts or the like.

A further object of this invention is to provide a sander shoe for a plane which shoe may be made of suitable material, such as cast or pressed steel properly tempered so as to provide a good filing, cutting, or sanding surface.

With the foregoing and other objects in view, as will hereinafter become apparent, this invention provides a construction, combination and arrangement of parts hereinafter set forth,

claimed and disclosed in the accompanying drawing, wherein Figure 1 is a side view of a plane to which the snap-on file shoe has been attached, ends of the side of the shoe being'broken away;

Figure 2 is a perspective view of the snap-on file shoe of this invention;

Figure 3 is an end view of Figure 2; and

Figure 4 is a bottom plan of view of the file shoe.

There is shown at Hi the snap-on file shoe of this invention. This file shoe as disclosed in Fig. 1 is intended to be suitably and temporarily attached to a conventional plane, whether a hand plane or power plane. For purposes of illustration, the file shoe iii of this invention is shown as temporarily attached to a hand plane Ii provided with its usual plane knife ill on the knife support 13 and the usual knife adjustingstud M and also the usual knife locking stud l5 and knife holder I5, the other end of the blade" being extendable and retractable through the plane bottom I1, the bottom ll extending up as the conventional plane sides I8. The steel file shoe I!) of this invention consists of a bottom wall 29 of a length and width just slightly greater than the length and width of the plane bottom H. The side walls 2 I extend upwardly along the long side edges of the bottom wall 2|] and are internally spaced apart a distance at least equal tothe distance between the outer surfaces of the plane sides I8.

The side walls 2| may be bevelled as at 22 near their ends. The bottom wall 20 is substantially rectangular and is provided with centrally located integral securing fingers 23 and 24 of a size and shape to extend over the ends of the plane bottom l1. As will be seen, one securing finger 23 is a snap finger which curves inwardly and then outwardly at 25 and have been treated so as to be resilient. The other securing finger 24 is an inturned hook arranged to receive one end of the plane bottom I! thereunder. The distance between the out curved end '25 of the snap finger 23 and the inside of hook finger 24 is greater than the length of the plane bottom H, the distance between the incurved surfaces of finger 23 inside of hook 24 is somewhat less than the length of the plane bottom ll. As a result, the shoe Hi may be attached to the plane ll, after the stud M has been actuated to retract the knife blade from extending through the plane bottom H, by merely setting the plane H down into the shoe I 8 between the side walls 2| and under hook finger 24 and pressing downwardly causing the spring finger 23 to move outwardly and then snap back over the end of the plane bottom l1, thus firmly, yet separably, attaching the shoe H] to the plane ll. Of course, the shoe It will be made in appropriate sizes to fit conventional size existing hand or power planes.

is The bottom and outer surfaces of the shoe bottom wall 20 and side walls 2| are provided with a serrated sander or file surface 26 and 21, the bottom surface 26 connecting with both side surfaces 21 by smoothly rounded edges 28 around which the serrations continue. These serrations 21 and 28 thus provide a file surface of any desired de gree of fineness or coarseness and will be serrated or out in a manner similar to any conventional hand file.

In operation, the sander shoe E is attached to the plane I I in the manner above described. As so attached, the plane and attached shoe will be gripped and held in the hand in a very similar manner that the plane would be held by itself, the operators fingers gripping either or both sides of the sander shoe at the same time. The operator then usually works the combined file shoe and plane over the surface of the material to smooth it by a filing action in the same manner that a piece of sandpaper attached to a, block is used. By having appropriate serrated surface on the sander shoe, the same smoothing action is provided as with fine or coarse sandpaper except for the benefit that the serrations are substantially permanent and do not wear away quickly as on a piece of sandpaper. Obviously, several shoes may be provided, each with a different type of serration so that an degree of coarseness or fineness may be available. extends on the rounded edges of the bottom and up the sides and either side may be used individually or simultaneously with the bottom. The rounded edge is useful so as to smooth or sand a moldingregardless of how small it may be,

while the ends of the bottom and sides are square The serrated surfaces so as to sand or smooth a surface close to an 7 said file shoe attachment comprising a substantially rectangular metal sheet, upstanding side walls extending along the long edges of said substantially rectangular metal sheet, said side walls being integrally attached to said bottom wall by rounded edges, a serrated file surface cut into the bottom surface of said rectangular sheet, said serrated file surface extending about said integral rounded edge and up the outer surfaces of said side walls, and means for detachably attaching saidshoe to a plane.

2. A unitary file shoe attachment for a plane, said file shoe attachment comprising a substantially rectangular metal sheet, upstanding side walls extending along the long edges of said substantially rectangular metal sheet, said side walls being. integrally attached to said bottom wall by rounded edges, a serrated file surface cut into the bottom surface of said rectangular sheet, said serrated file surface extending about said integral rounded edge and up the outer surfaces of said side walls, and means for detachably attaching said shoe to a plane, said means being located at the short ends of said metal sheet and comprising an inturned hook finger on one of said short ends and a cooperating inwardly and outwadly flared curved snap finger at the other en JAMES G. BENNETT.

References Cited in the file of this patent V UNITED STATES PATENTS Number Name Date 643,717 Ingalsbe Feb. 20, 1900 1,317,615 Cordell Sept. 30, 1919 1,349,596 Wosiewski Aug. 17, 1920 1,528,177 Adams Mar, 3, 1925 1,633,700 Hawkins June 28, 1927 1,960,378 Hagerling May 29, 1934 2,166,344 Donohue July 18, 1939 2,232,409 Salzsieder Feb. 18, 1941 FOREIGN PATENTS Number Country Date 1,876 Great Britain Jan. 27, 1896 of 1896 144,490 Great Britain June 17, 1920 

